Projection display device

Abstract

A projection display device includes: a light source device which has a plurality of light source parts, and combines light from the light source parts and outputs the same; a light modulating part which modulates light output from the light source device; a main body cabinet in which the light source device and the light modulating part are disposed; a plurality of opening parts which are provided in the main body cabinet and through which the light source parts are individually put into or taken out; a plurality of covers which cover the corresponding opening parts; and a light source control part. When any of the covers is opened during operation, the light source control part controls the light source parts except for the light source part corresponding to the opened cover, in such a manner as to reduce intensity of light emitted from the other light source parts.

1 . A projection display device, comprising:
 a light source device which has a plurality of light source parts, and combines light from the light source parts and outputs the same;   a light modulating part which modulates light output from the light source device;   a main body cabinet in which the light source device and the light modulating part are disposed;   a plurality of opening parts which are provided in the main body cabinet and through which the light source parts are individually put into or taken out;   a plurality of covers which cover the corresponding opening parts; and   a light source control part which controls the light source parts, wherein   when any of the covers is opened during operation, the light source control part controls the light source parts except for the light source part corresponding to the opened cover, in such a manner as to reduce intensity of light emitted from the light source parts.   
     
     
         2 . The projection display device according to  claim 1 , wherein
 the light source device includes a first light source part and a second light source part opposite to the first light source part, and   when the cover corresponding to the first light source part is opened, the light source control part turns off the second light source part or reduces light emitted from the same.   
     
     
         3 . The projection display device according to  claim 2 , wherein
 the light source device includes a third light source part adjacent to the first light source part and a fourth light source part opposite to the third light source part, and   when the cover corresponding to the first light source part is opened, the light source control part turns off the second light source part and the fourth light source part or reduces light emitted from the same.   
     
     
         4 . The projection display device according to  claim 1 , wherein
 the light source device includes a first light source part and a second light source part having the characteristic of cancelling out color unevenness each other, and   when the cover corresponding to the first light source part is opened, the light source control part turns off the second light source part or reduces light emitted from the same.   
     
     
         5 . The projection display device according to  claim 1 , wherein
 the light source control part reduces light emitted from all the light source parts except for a light source part corresponding to the opened cover.   
     
     
         6 . The projection display device according to  claim 1 , further comprising:
 a plurality of cooling fans which cool the corresponding light source parts, and   a fan control part which controls the cooling fans, wherein   the fan control part stops a cooling fan for cooling a light source part corresponding to the opened cover.